A gastroscope tube fixing structure for gastroenterology department

Abstract

The present invention discloses a gastroscope tube fixing structure for the gastroenterology department, comprising an opening and closing anti-swallowing mandibular expansion mechanism, a mouthpiece assembly body, a one-way sliding adjustment mechanism, and an expansion angle locking mechanism. The present invention belongs to the field of gastroscope fixation technology, and specifically refers to a gastroenterology tube fixing structure; in order to cope with the problem of different mouth opening angles of different patients, the present invention creatively proposes an opening and closing anti-swallowing mandibular expansion mechanism, which finds the best bite position for different patients through a rotatably adjustable arc-shaped mouthpiece, and the support and limitation of the one-way sliding adjustment mechanism and the expansion angle locking mechanism make the operation process extremely simple, which can not only prevent the patient from swallowing subconsciously, but also collect and process saliva through a water-absorbing cotton ring, thereby reducing the patient's rejection and resistance.

Description

Technical Field

[0001] The invention belongs to the technical field of gastroscope fixation, and in particular relates to a gastroscope tube fixation structure for the gastroenterology department. Background Art

[0002] In clinical medicine, a gastroscope is often used to examine the inside of a patient's stomach. The gastroscope needs to be inserted from the patient's mouth and into the stomach along the esophagus. At the patient's mouth, the gastroscope tube is generally fixed by a mouthpiece. However, the current existing mouthpiece structure is extremely simple and only serves to facilitate the doctor's insertion of the scope.

[0003] According to the guidelines, there are two main problems in the existing gastroscopy process:

[0004] A: During the observation process, the patient cannot swallow, otherwise it may damage the oral and esophageal mucosa, causing damage to the human body or the gastroscope tube. However, when there is saliva or foreign objects in the mouth, the patient will swallow unconsciously.

[0005] B: Since the mouth is always open and swallowing is impossible, saliva can only flow out through the mouthpiece, which will cause psychological pressure or shame to the patient, increasing the patient's rejection of the examination.

[0006] Clinical trials have shown that when a person opens their mouth (two or three fingers) and the tongue cannot hold the upper part of the mouth, it is difficult to swallow even with voluntary control, and swallowing is even more impossible without conscious effort.

[0007] Based on the above findings, the present invention proposes a gastroenterological endoscope tube fixing structure specifically for patients prone to subconscious swallowing to prevent them from swallowing. Summary of the Invention

[0008] In view of the above situation, in order to overcome the defects of the prior art, the present invention proposes a gastroenterology gastroscope tube fixing structure which prevents patients from swallowing subconsciously by limiting the mandible and the middle part of the tongue, and has the function of collecting and processing saliva; in order to cope with the problem of different mouth opening angles of different patients, the present invention creatively proposes an open and close anti-swallowing mandibular expansion mechanism, which finds the best bite position for different patients through a rotatable and adjustable arc-shaped bite device, and makes the operation process extremely simple through the support and limitation of the one-way sliding adjustment mechanism and the expansion angle locking mechanism, which can not only prevent patients from swallowing subconsciously, but also collect and process saliva through the absorbent cotton ring, thereby reducing the patient's rejection and resistance.

[0009] The linkage of the one-way sliding adjustment mechanism and the expansion angle locking mechanism overcomes the technical contradiction that the arc-shaped tooth bite device must be opened (to prevent swallowing) but cannot be opened (causing soreness of the bite muscles), achieving the technical goals of simple operation, convenient use and significant effect.

[0010] The technical solution adopted by the present invention is as follows: The present invention proposes a gastroscope tube fixing structure for the gastroenterology department, including an opening and closing anti-swallowing mandibular expansion mechanism, a mouthpiece assembly body, a one-way sliding adjustment mechanism and an expansion angle locking mechanism. The opening and closing anti-swallowing mandibular expansion mechanism is symmetrically arranged on the mouthpiece assembly body. By opening the opening and closing anti-swallowing mandibular expansion mechanism, the opening angle of the mandible can be limited, and the tongue can be limited by the mouthpiece assembly body to prevent the patient from swallowing unconsciously during the gastroscopy examination. The one-way sliding adjustment mechanism It is located on the opening and closing anti-swallowing mandibular expansion mechanism, and the opening angle of the arc-shaped bite device can be adaptively and continuously adjusted through the one-way sliding adjustment mechanism, combined with the patient's own control of the bite force, to ensure that the arc-shaped bite device can eventually be at a suitable opening angle, thereby achieving the technical goal of preventing swallowing without causing bite muscle pain. The expansion angle locking mechanism is symmetrically located on the bite device assembly body, and the sliding position of the one-way sliding adjustment mechanism can be locked through the expansion angle locking mechanism. After locking, the one-way sliding adjustment mechanism cannot continue to slide.

[0011] Furthermore, the opening and closing anti-swallowing mandibular expansion mechanism includes a mandibular rotation expansion component, a flexible sealing component and a water-absorbing cotton ring. The mandibular rotation expansion component is symmetrically arranged on the mouthpiece component body, the flexible sealing component is arranged between the mandibular rotation expansion component and the mouthpiece component body, and the water-absorbing cotton ring is symmetrically arranged on the mandibular rotation expansion component.

[0012] Preferably, the mandibular rotation and expansion assembly includes an articulation base, an articulation platform, an arc-shaped articulator and a silicone tooth limit ring, the articulation base is fixedly connected to the articulation tool assembly body, the articulation platform is provided with a articulation shaft of the articulation tool, the articulation platform is rotatably arranged on the articulation base through the articulation shaft of the articulation tool, the arc-shaped articulator is fixed to the articulation platform, and the opening angle of the arc-shaped articulator can be changed by the mutual rotation of the articulation base and the articulation platform, the outer side of the arc-shaped articulator is provided with a articulation tool boss, and the arc-shaped articulator is provided with a articulation tool groove on the articulation tool boss, and the silicone tooth limit ring is engaged in the articulation tool groove, and the angle of the arc-shaped articulator can be finely controlled through the patient's active occlusion until the arc-shaped articulator is adjusted to a suitable angle.

[0013] As a further preference of the present invention, the flexible sealing component includes an elliptical transparent flat ring and an elastic sealing fan. Through the deformation and expansion of the elastic sealing fan itself, the sealing connection state between the opening and closing anti-swallowing mandibular expansion mechanism and the mouthpiece assembly body can be maintained, thereby preventing saliva from flowing to the outside along the outer wall of the opening and closing anti-swallowing mandibular expansion mechanism. The inner ring of the elliptical transparent flat ring is fixed to the mouthpiece assembly body, and the outer ring of the elliptical transparent flat ring is fixed to the arc-shaped bite device and the elastic sealing fan. The connection between the outer ring of the elliptical transparent flat ring is a sealed connection, and the two sides of the elastic sealing fan are sealed with the side faces of the arc-shaped bite device; the absorbent cotton ring is fixed to the inner side of the arc-shaped bite device.

[0014] Furthermore, the mouthpiece assembly body includes a central catheter and a square fixing platform. One end of the central catheter is provided with a catheter tongue depressor, which can press the patient's tongue. When the patient's mandible is opened to a certain angle and the tongue is pressed, swallowing is impossible, thereby protecting the esophagus and oral mucosa from unconscious behavior and damage. The square fixing platform is snap-fitted onto the central catheter. The square fixing platform is provided with an arc-shaped portion of the fixing platform. The inner ring of the elliptical flat ring is sealed with the arc-shaped portion of the fixing platform. The square fixing platform is symmetrically provided with a mounting table. The hinged base is fixed to the mounting table. The square fixing platform is provided with an array of locking positioning pin holes on the mounting table.

[0015] Furthermore, the one-way sliding adjustment mechanism includes a one-way jumping sliding assembly and a support link assembly, the one-way jumping sliding assembly is slidably arranged on the expansion angle locking mechanism, and the support link assembly is rotatably arranged on the one-way jumping sliding assembly.

[0016] Preferably, the one-way jumping sliding assembly includes a waist-shaped slider, a telescopic guide rod, a jumping limit rack and a jumping reset spring piece. The waist-shaped slider is engaged and slidably arranged in the expansion angle locking mechanism. The telescopic guide rod is symmetrically arranged on the waist-shaped slider. The jumping limit rack is arranged on the telescopic guide rod. The telescopic guide rod has the function of limiting and guiding. The jumping limit rack is provided with a center limiting tooth and a side limiting tooth. One end of the jumping reset spring piece is arranged on the waist-shaped slider, and the other end of the jumping reset spring piece is arranged on the jumping limit rack. The jumping reset spring piece has the function of quickly resetting the jumping limit rack after each bounce.

[0017] As a further preference of the present invention, the support link assembly includes a sliding side hinge plate, a top support hinge seat and a top support link, the sliding side hinge plate is fixed to the side surface of the waist-shaped slider, the sliding side hinge plate is provided with a side hinge shaft, the top support hinge seat is fixed to the inner side of the arc-shaped tooth bite, the top support hinge seat is provided with a top support hinge shaft, and the two ends of the top support link are symmetrically provided with link hinge holes, the top support link is rotated through one group of link hinge holes and is arranged on the side hinge shaft, and the top support link is rotated through another group of link hinge holes and is arranged on the top support hinge shaft. During the sliding process, the one-way jumping sliding assembly can adjust and support the arc-shaped tooth bite through the top support link, thereby controlling the opening angle of the arc-shaped tooth bite.

[0018] Furthermore, the expansion angle locking mechanism includes a locking guide block, a locking sliding assembly and a lifting locking assembly. The locking guide block is symmetrically arranged on the mounting table. The locking guide block is provided with a guide block sliding hole. The waist-shaped slider is engaged and slidably arranged in the guide block sliding hole. The locking guide block is provided with an array of guide block ratchets corresponding to the side limit teeth. The locking sliding assembly is engaged and slidably arranged in the guide block sliding hole. The lifting locking assembly is engaged and slidably arranged on the locking sliding assembly. The locking guide block has a limiting function during sliding and locking.

[0019] Preferably, the locking sliding assembly includes a waist-shaped sliding rod and a sliding locking base, the waist-shaped sliding rod is engaged and slidably arranged in the sliding hole of the guide block, the sliding locking base is fixed to the waist-shaped sliding rod, a locking base pressing portion is provided on the sliding locking base, and a locking base groove is also provided on the sliding locking base, and a locking base sliding hole is provided at the bottom of the locking base groove on the sliding locking base.

[0020] As a further preference of the present invention, the lifting locking assembly includes a locking pressure plate, a locking guide rod and a locking reset spring piece. The locking guide rod is fixedly connected to the bottom of the locking pressure plate, the locking pressure plate is engaged and slidably arranged in the locking base groove, the locking guide rod is engaged and slidably arranged in the locking base sliding hole, one end of the locking reset spring piece is arranged at the bottom of the locking base groove, and the other end of the locking reset spring piece is arranged on the locking pressure plate. After being pressed by the center limit tooth, the locking pressure plate will push the locking guide rod down and slide into the locking positioning pin hole to fix the position of the sliding locking base.

[0021] The beneficial effects achieved by the present invention using the above structure are as follows:

[0022] (1) The opening angle of the mandible can be limited by opening the opening and closing anti-swallowing mandibular expansion mechanism, and the tongue can be limited by the mouthpiece assembly body to prevent the patient from swallowing unconsciously during the gastroscopy.

[0023] (2) The one-way sliding adjustment mechanism can adaptively and continuously adjust the opening angle of the arc-shaped bite block, and cooperate with the patient's own control of the bite force to ensure that the arc-shaped bite block can finally be at the appropriate opening angle, thereby achieving the technical goal of preventing swallowing without causing bite muscle pain;

[0024] (3) The sliding position of the one-way sliding adjustment mechanism can be locked by the expansion angle locking mechanism, and the one-way sliding adjustment mechanism cannot slide further after being locked;

[0025] (4) The opening angle of the arc-shaped bite device can be changed by rotating the articulated base and the articulated table;

[0026] (5) Through the patient's active bite, the angle of the curved bite device can be finely controlled until the curved bite device is adjusted to the appropriate angle;

[0027] (6) The elastic sealing fan itself can maintain a sealed connection state with the mouthpiece assembly body during the opening and closing process of the open-and-close anti-swallowing mandibular expansion mechanism through its own deformation and expansion, thereby preventing saliva from flowing to the outside along the outer wall of the open-and-close anti-swallowing mandibular expansion mechanism;

[0028] (7) The tongue depressor of the catheter can depress the patient's tongue. When the patient's mandible is opened to a certain angle and the tongue is pressed, the patient cannot swallow, thereby protecting the esophagus and oral mucosa from unconscious behavior and damage;

[0029] (8) The jumping reset spring has the function of quickly resetting the jumping limit rack after each bounce;

[0030] (9) During the sliding process, the one-way jumping sliding assembly can adjust and support the arc-shaped tooth bite through the supporting connecting rod, thereby controlling the opening angle of the arc-shaped tooth bite;

[0031] (10) The locking pressure plate, after being pressed by the center limit tooth, pushes the locking guide rod down and slides into the locking positioning pin hole to fix the position of the sliding locking base;

[0032] (11) The hygiene of the entire device is ensured by disinfecting and replacing the disposable parts, silicone tooth limit ring, central catheter and absorbent cotton ring, every time. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a three-dimensional diagram of a gastroscope tube fixing structure for gastroenterology proposed by the present invention;

[0034] Figure 2 This is a front view of a gastroscope tube fixing structure for gastroenterology proposed by the present invention;

[0035] Figure 3 This is a top view of a gastroscope tube fixing structure for gastroenterology proposed by the present invention;

[0036] Figure 4 This is a left view of a gastroscope tube fixing structure for gastroenterology proposed by the present invention;

[0037] Figure 5 for Figure 4 A cross-sectional view along the cutting line AA;

[0038] Figure 6 This is a schematic structural diagram of an open-and-close anti-swallowing mandibular expansion mechanism for a gastroscope tube fixing structure in the gastroenterology department proposed by the present invention;

[0039] Figure 7 This is a structural schematic diagram of the mouthpiece assembly body of a gastroscope tube fixing structure for gastroenterology proposed by the present invention;

[0040] Figure 8 This is a structural schematic diagram of a one-way sliding adjustment mechanism for a gastroscope tube fixing structure for gastroenterology proposed by the present invention;

[0041] Figure 9 This is a structural schematic diagram of an expansion angle locking mechanism of a gastroscope tube fixing structure for gastroenterology proposed by the present invention;

[0042] Figure 10 Schematic diagram of the combined structure of the opening and closing anti-swallowing mandibular expansion mechanism, the mouthpiece assembly body, the one-way sliding adjustment mechanism and the expansion angle locking mechanism;

[0043] Figure 11 for Figure 4 A partial enlarged view of point Ⅰ in the middle;

[0044] Figure 12 for Figure 5 A partial enlarged view of the middle II;

[0045] Figure 13 for Figure 5 A partial enlarged view of point III in the middle;

[0046] Figure 14 for Figure 5 A partial enlarged view of point IV in the middle.

[0047] Among them, 1. Open and close anti-swallowing mandibular expansion mechanism, 2. Bite assembly body, 3. One-way sliding adjustment mechanism, 4. Expansion angle locking mechanism, 5. Mandibular rotation expansion assembly, 6. Flexible sealing assembly, 7. Water-absorbing cotton ring, 8. Articulated base, 9. Articulated table, 10. Arc-shaped bite, 11. Oval through-flat ring, 12. Elastic sealing fan, 13. Bite hinge shaft, 14. Bite boss, 15. Bite groove, 16. Silicone tooth limit ring, 17. Central catheter, 18. Square fixed table, 19. Catheter tongue pressing part, 20. Fixed table arc part, 21. Mounting table, 22. Locking positioning pin hole, 23. One-way jumping sliding assembly, 24. Support connecting rod Components, 25, waist-shaped slider, 26, telescopic guide rod, 27, jumping limit rack, 28, jumping reset spring, 29, sliding side hinge plate, 30, top support hinge seat, 31, top support connecting rod, 32, center limit tooth, 33, side limit tooth, 34, side hinge shaft, 35, top support hinge shaft, 36, connecting rod hinge hole, 37, locking guide block, 38, locking sliding component, 39, lifting locking component, 40, guide block sliding hole, 41, guide block ratchet, 42, waist-shaped slide bar, 43, sliding locking base, 44, locking pressure plate, 45, locking guide rod, 46, locking reset spring, 47, locking base pressing part, 48, locking base groove, 49, locking base sliding hole.

[0048] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0050] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0051] like Figure 1As shown, the present invention proposes a gastroenterology gastroscope tube fixing structure, including an opening and closing anti-swallowing mandibular expansion mechanism 1, a mouthpiece assembly body 2, a one-way sliding adjustment mechanism 3 and an expansion angle locking mechanism 4. The opening and closing anti-swallowing mandibular expansion mechanism 1 is symmetrically arranged on the mouthpiece assembly body 2. By opening the opening and closing anti-swallowing mandibular expansion mechanism 1, the opening angle of the mandible can be limited, and the mouthpiece assembly body 2 can be used to limit the tongue to prevent the patient from swallowing unconsciously during the gastroscopy examination. The one-way sliding adjustment mechanism 3 is arranged on the opening and closing anti-swallowing mandibular expansion mechanism 1. On the pharyngeal mandibular expansion mechanism 1, the opening angle of the arc-shaped bite device 10 can be adaptively and continuously adjusted through the one-way sliding adjustment mechanism 3, and combined with the patient's own control of the bite force, it is ensured that the arc-shaped bite device 10 can eventually be at a suitable opening angle, achieving the technical goal of preventing swallowing without causing bite muscle pain. The expansion angle locking mechanism 4 is symmetrically arranged on the bite device assembly body 2. The sliding position of the one-way sliding adjustment mechanism 3 can be locked through the expansion angle locking mechanism 4. After locking, the one-way sliding adjustment mechanism 3 cannot continue to slide.

[0052] like Figure 1 、 Figure 2 、 Figure 7 As shown, the mouthpiece assembly body 2 includes a central catheter 17 and a square fixing platform 18. One end of the central catheter 17 is provided with a catheter tongue depressor 19, which can press the patient's tongue. When the patient's mandible is opened to a certain angle and the tongue is pressed, the patient cannot swallow, thereby protecting the esophagus and oral mucosa from unconscious behavior and damage. The square fixing platform 18 is snap-fitted onto the central catheter 17. The square fixing platform 18 is provided with a fixing platform arc portion 20. The inner ring of the elliptical flat ring 11 is sealed with the fixing platform arc portion 20. The square fixing platform 18 is symmetrically provided with a mounting table 21, and the hinged base 8 is fixed to the mounting table 21. The square fixing platform 18 is provided with an array of locking positioning pin holes 22 on the mounting table 21.

[0053] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 14As shown, the open-and-close anti-swallowing mandibular expansion mechanism 1 includes a mandibular rotation expansion component 5, a flexible sealing component 6 and a water-absorbing cotton ring 7. The mandibular rotation expansion component 5 is symmetrically arranged on the mouthpiece component body 2, the flexible sealing component 6 is arranged between the mandibular rotation expansion component 5 and the mouthpiece component body 2, and the water-absorbing cotton ring 7 is symmetrically arranged on the mandibular rotation expansion component 5; the mandibular rotation expansion component 5 includes a hinge base 8, a hinge platform 9, an arc-shaped tooth bite 10 and a silicone tooth limiter The position ring 16, the articulated base 8 is fixed to the bite assembly body 2, the articulated platform 9 is provided with a bite hinge shaft 13, the articulated platform 9 is rotated on the articulated base 8 through the bite hinge shaft 13, the arc-shaped bite 10 is fixed to the articulated platform 9, and the opening angle of the arc-shaped bite 10 can be changed by the mutual rotation of the articulated base 8 and the articulated platform 9. The outer side of the arc-shaped bite 10 is provided with a bite boss 14, and the arc-shaped bite 10 is provided with a bite boss 14. The groove 15 and the silicone tooth limit ring 16 are engaged in the groove 15 of the bite device. Through the patient's active bite, the angle of the arc bite device 10 can be finely controlled until the arc bite device 10 is adjusted to a suitable angle; the flexible sealing component 6 includes an elliptical transparent flat ring 11 and an elastic sealing fan 12. Through the deformation and expansion of the elastic sealing fan 12 itself, the sealing connection state between the opening and closing anti-swallowing mandibular expansion mechanism 1 and the bite device component body 2 can be maintained to prevent saliva from flowing to the outside along the outer wall of the opening and closing anti-swallowing mandibular expansion mechanism 1. The inner ring of the elliptical transparent flat ring 11 is fixed to the bite device component body 2, and the outer ring of the elliptical transparent flat ring 11 is fixed to the arc bite device 10 and the elastic sealing fan 12. The connection between the outer ring of the elliptical transparent flat ring 11 is a sealed connection, and the two sides of the elastic sealing fan 12 are sealed with the side of the arc bite device 10; the absorbent cotton ring 7 is fixed to the inner side of the arc bite device 10.

[0054] like Figure 1 、 Figure 4 、 Figure 5 、 Figure 8 、 Figure 11 、 Figure 12As shown, the one-way sliding adjustment mechanism 3 includes a one-way jumping sliding component 23 and a supporting link component 24. The one-way jumping sliding component 23 is slidably arranged on the expansion angle locking mechanism 4, and the supporting link component 24 is rotatably arranged on the one-way jumping sliding component 23; the one-way jumping sliding component 23 includes a waist-shaped slider 25, a telescopic guide rod 26, a jumping limiting rack 27 and a jumping reset spring 28. The waist-shaped slider 25 is engaged and slidably arranged in the expansion angle locking mechanism 4, the telescopic guide rod 26 is symmetrically arranged on the waist-shaped slider 25, the jumping limiting rack 27 is arranged on the telescopic guide rod 26, the telescopic guide rod 26 has the function of limiting and guiding, the jumping limiting rack 27 is provided with a center limiting tooth 32 and a side limiting tooth 33, one end of the jumping reset spring 28 is arranged on the waist-shaped slider 25, and the other end of the jumping reset spring 28 is arranged on the jumping limiting rack 27. 8 has the function of quickly resetting the jumping limit rack 27 after each bounce; the supporting link assembly 24 includes a sliding side hinge plate 29, a top support hinge seat 30 and a top support connecting rod 31, the sliding side hinge plate 29 is fixed to the side of the waist-shaped slider 25, the sliding side hinge plate 29 is provided with a side hinge shaft 34, the top support hinge seat 30 is fixed to the inner side of the arc-shaped tooth biting device 10, the top support hinge seat 30 is provided with a top support hinge shaft 35, and the top support connecting rod 31 is provided with a top support hinge shaft 35. Connecting rod hinge holes 36 are symmetrically provided at both ends of the rod 31. The supporting connecting rod 31 is rotated on the side hinge shaft 34 through one group of connecting rod hinge holes 36, and the supporting connecting rod 31 is rotated on the supporting hinge shaft 35 through another group of connecting rod hinge holes 36. During the sliding process, the one-way jumping sliding assembly 23 can adjust and support the arc-shaped tooth biter 10 through the supporting connecting rod 31, thereby controlling the opening angle of the arc-shaped tooth biter 10.

[0055] like Figure 1 、 Figure 9 、 Figure 10 、 Figure 13As shown, the expansion angle locking mechanism 4 includes a locking guide block 37, a locking sliding assembly 38 and a lifting locking assembly 39. The locking guide block 37 is symmetrically arranged on the mounting table 21. A guide block sliding hole 40 is provided on the locking guide block 37. The waist-shaped slider 25 is engaged and slidably arranged in the guide block sliding hole 40. An array of guide block ratchets 41 corresponding to the side limit teeth 33 is provided on the locking guide block 37. The locking sliding assembly 38 is engaged and slidably arranged in the guide block sliding hole 40. The lifting locking assembly 39 is engaged and slidably arranged on the locking sliding assembly 38. The locking guide block 37 has a limiting function in the sliding and locking process; the locking sliding assembly 38 includes a waist-shaped slide bar 42 and a sliding locking base 43. The waist-shaped slide bar 42 is engaged and slidably arranged in the guide block sliding hole 40. The sliding locking base 43 is fixedly connected to the waist-shaped slide bar 42. The locking guide rod 45 is fixed to the bottom of the locking pressure plate 44, and the locking pressure plate 44 is engaged and slidably arranged in the locking base groove 48. The locking guide rod 45 is engaged and slidably arranged in the locking base slide hole 49. One end of the locking reset elastic piece 46 is arranged at the bottom of the locking base groove 48, and the other end of the locking reset elastic piece 46 is arranged on the locking pressure plate 44. After being pressed by the center limit tooth 32, the locking pressure plate 44 will push the locking guide rod 45 down and slide into the locking positioning pin hole 22 to fix the position of the sliding locking base 43.

[0056] During specific use, the user first needs to open his mouth to the limit, and then put the mouthpiece assembly body 2 into the patient's mouth, with the catheter tongue depressor 19 as the front end. Since the limit opening angles of the upper and lower gums of different patients are different, the arc-shaped tooth bite device 10 will first close a certain angle under the block of the teeth when it first contacts the teeth. At this time, the waist-shaped slider 25 slides along the guide block slide hole 40 toward the direction of the principle catheter tongue depressor 19 under the support of the supporting connecting rod 31. During the sliding process, due to the mutual cooperation of the side limit teeth 33 and the guide block ratchet teeth 41, the jumping limit rack 27 can only slide in one direction during the continuous jumping process;

[0057] After the arc-shaped bite block 10 is closed to a certain angle, the user inserts the teeth into the silicone tooth limiting ring 16 to complete a relatively firm connection between the teeth and the arc-shaped bite block 10. At this time, the patient's tooth opening angle is at its limit angle. Then the patient is instructed to gently close his teeth, and the jumping limiting rack 27 is instructed to slide two to three units (the pitch of the guide block ratchet 41) following the waist-shaped slider 25 and then stop. At this time, the mandibular opening angle can be ensured to be large enough (to prevent swallowing) and small enough (to avoid soreness of the bite muscles).

[0058] When the jumping limit rack 27 slides to the limit, the doctor manually pushes the locking base pressing portion 47 of the sliding locking base 43 to make the sliding locking base 43 slide in the direction of the one-way jumping sliding assembly 23. When the sliding locking base 43 contacts the center limiting tooth 32, the jumping limit rack 27 will jump a distance at one end of the sliding locking base 43. This distance is not enough to make the jumping limit rack 27 escape from the gap between the guide block ratchet teeth 41. When the center limiting tooth 32 enters the locking base groove 48, the jumping limit rack 27 rebounds under the elastic force of the jumping reset spring piece 28, pressing the locking pressure plate 44 and the locking guide rod 45 to the bottom. At this time, the locking reset spring piece 46 is compressed and stores elastic potential energy. At this time, the position of the arc bite device 10 is fixed.

[0059] Finally, the gastroscope catheter is passed through the central catheter 17;

[0060] During the examination, since the patient cannot close his mouth and swallow, saliva will flow out naturally. However, the flexible sealing component 6 is in contact with the patient's mouth, and the saliva can only pass through the oval flat ring 11 and flow to the outside along the inner wall of the arc-shaped tooth bite 10 and the elastic sealing fan 12. The saliva is then absorbed by the absorbent cotton ring 7 and does not flow to the outside.

[0061] After the examination, the gastroscope tube is first pulled out, and then the patient opens his mouth to the limit again, and then the device can be removed.

[0062] The above is the overall workflow of the present invention. Just repeat this step next time you use it.

[0063] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0064] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

[0065] The present invention and its embodiments are described above. This description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs structures and embodiments similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A gastroscope tube fixing structure for gastroenterology, characterized by: It includes an opening and closing anti-swallowing mandibular expansion mechanism, a mouthpiece assembly body, a one-way sliding adjustment mechanism and an expansion angle locking mechanism, the opening and closing anti-swallowing mandibular expansion mechanism is symmetrically arranged on the mouthpiece assembly body, the one-way sliding adjustment mechanism is arranged on the opening and closing anti-swallowing mandibular expansion mechanism, and the expansion angle locking mechanism is symmetrically arranged on the mouthpiece assembly body; the opening and closing anti-swallowing mandibular expansion mechanism includes a mandibular rotation expansion component, a flexible sealing component and a water-absorbing cotton ring, the mandibular rotation expansion component is symmetrically arranged on the mouthpiece assembly body, the flexible sealing component is arranged between the mandibular rotation expansion component and the mouthpiece assembly body, and the water-absorbing cotton ring is symmetrically arranged on the mandibular rotation expansion component; The mouthpiece assembly body includes a central conduit and a square fixing platform. One end of the central conduit is provided with a tongue-pressing conduit portion with an open top extending to the tongue root. The square fixing platform is provided with an array of locking positioning pin holes. The one-way sliding adjustment mechanism includes a one-way jumping sliding assembly and a support link assembly, wherein the one-way jumping sliding assembly is slidably arranged on the expansion angle locking mechanism, and the support link assembly is rotatably arranged on the one-way jumping sliding assembly; The one-way jumping sliding assembly includes a waist-shaped slider, a telescopic guide rod and a jumping limit rack. The waist-shaped slider is engaged and slidably arranged in the expansion angle locking mechanism. The telescopic guide rod is symmetrically arranged on the waist-shaped slider. The jumping limit rack is arranged on the telescopic guide rod. The expansion angle locking mechanism includes a locking guide block, a locking sliding assembly and a lifting locking assembly. The locking guide block is symmetrically arranged on the mounting table. The locking guide block is provided with a guide block sliding hole. The waist-shaped slider is engaged and slidably arranged in the guide block sliding hole. The locking guide block is provided with an array of guide block ratchets corresponding to the side limit teeth. The locking sliding assembly is engaged and slidably arranged in the guide block sliding hole, and the lifting locking assembly is engaged and slidably arranged on the locking sliding assembly.

2. A gastroscope tube fixing structure for gastroenterology according to claim 1, characterized in that: The mandibular rotation and expansion assembly includes an articulated base, an articulated platform, an arc-shaped bite block and a silicone tooth limit ring. The articulated base is fixedly connected to the bite block assembly body. The articulated platform is provided with a bite block articulated shaft. The articulated platform is rotatably arranged on the articulated base through the articulated shaft. The arc-shaped bite block is fixedly connected to the articulated platform. The outer side of the arc-shaped bite block is provided with a bite block boss. The arc-shaped bite block is provided with a bite block groove on the bite block boss. The silicone tooth limit ring is engaged in the bite block groove.

3. The gastroenterology endoscope tube fixing structure according to claim 2, characterized in that: The flexible sealing assembly includes an elliptical transparent flat ring and an elastic sealing fan. The inner ring of the elliptical transparent flat ring is fixed to the bite assembly body, and the outer ring of the elliptical transparent flat ring is fixed to the arc-shaped bite and the elastic sealing fan. The connection between the outer ring of the elliptical transparent flat ring is a sealed connection, and the two sides of the elastic sealing fan are sealed to the side of the arc-shaped bite; the absorbent cotton ring is fixed to the inner side of the arc-shaped bite.

4. A gastroscope tube fixing structure for gastroenterology according to claim 3, characterized in that: The square fixing platform is snap-fitted onto the central conduit, an arc-shaped portion of the fixing platform is provided on the square fixing platform, the inner ring of the elliptical through-flat ring is sealedly connected to the arc-shaped portion of the fixing platform, a mounting surface is symmetrically provided on the square fixing platform, the hinged base is fixedly connected to the mounting surface, and an array of locking positioning pin holes is provided on the mounting surface of the square fixing platform.

5. The gastroenterology gastroscope tube fixing structure according to claim 4, characterized in that: The one-way jumping sliding assembly also includes a jumping reset spring piece, and the jumping limit rack is provided with a central limit tooth and a side limit tooth. One end of the jumping reset spring piece is arranged on the waist-shaped slider, and the other end of the jumping reset spring piece is arranged on the jumping limit rack.

6. The gastroenterology gastroscope tube fixing structure according to claim 5, characterized in that: The support link assembly includes a sliding side hinge plate, a top support hinge seat and a top support link. The sliding side hinge plate is fixed to the side of the waist-shaped slider. The sliding side hinge plate is provided with a side hinge shaft. The top support hinge seat is fixed to the inner side of the arc-shaped tooth biter. The top support hinge seat is provided with a top support hinge shaft. Link hinge holes are symmetrically provided at both ends of the top support link. The top support link is rotated on the side hinge shaft through one group of the link hinge holes, and the top support link is rotated on the top support hinge shaft through another group of the link hinge holes.

7. The gastroenterology gastroscope tube fixing structure according to claim 6, characterized in that: The locking sliding assembly includes a waist-shaped sliding rod and a sliding locking base. The waist-shaped sliding rod is engaged and slidably arranged in the sliding hole of the guide block. The sliding locking base is fixed to the waist-shaped sliding rod. A locking base pressing portion is provided on the sliding locking base. A locking base groove is also provided on the sliding locking base. The sliding locking base is provided with a locking base sliding hole at the bottom of the locking base groove.

8. The gastroenterology gastroscope tube fixing structure according to claim 7, characterized in that: The lifting locking assembly includes a locking pressure plate, a locking guide rod and a locking reset spring. The locking guide rod is fixed to the bottom of the locking pressure plate, the locking pressure plate is snap-fitted and slidably arranged in the locking base groove, the locking guide rod is snap-fitted and slidably arranged in the locking base slide hole, one end of the locking reset spring is arranged at the bottom of the locking base groove, and the other end of the locking reset spring is arranged on the locking pressure plate.

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